I saw a lot of back and forth about the subject in old threads but no one really listed what kind of pressure they were talking about. I have a Koyo racing radiator I'm putting in soon, so I ordered a koyo rad cap rated a 1.3bar or 18.5 psi. Stock TT cap is rated at 1.2bar? so..17.5 psi. Is that 1 pound increase really going to strain the factory cooling system or blow out old hoses with anymore risk than a stock TT cap?
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